The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1997
Filed:
May. 16, 1995
Manfred Weyand, Monchen-Gladbach, DE;
Hermann Kott, Monchen-Gladbach, DE;
Babcock-Sempell AG, Korschenbroich, DE;
Abstract
A disk valve for a fluid under pressure, inside a housing (10), and comprising one, fixed plate cam (26), which has one port (32). A second, rotatable plate cam (34) which also has a port (36) is mounted above the fixed disk cam (26). The ports (32, 36) are eccentric to the axis of rotation of the rotating disk cam (34) such that they can be brought from an aligned open position into a misaligned closed position by rotating the rotating plate cam (34). A pressure relief surface (44, Ae), concentric to the axis of rotation, is provided on the rotating plate cam (34) and this surface is in contact with the outlet pressure of the fluid, in the closed position at least. To compensate the tilting moment which is exerted on the rotating plate cam (34) due to the off-centre position of the port (32) in the fixed plate cam (26), a slot (74) is made in the upwards facing surface of the fixed plate cam (26) which, in its position and shape, is approximately symmetrical to the cross-sectional form of the port (32) and, for its part, is in contact with the outlet pressure, in the closed position at least.